Function process_suffixed_number

src/numfmt.c:1336–1388

Converts the TEXT number string to the requested representation, and handles automatic suffix addition. */

/* Converts the TEXT number string to the requested representation,
   and handles automatic suffix addition.  */
static bool
process_suffixed_number (char *text, long double *result,
                         size_t *precision, long int field)
{
  char saved_suffix = '\0';

  if (suffix)
    {
      if (mbs_endswith (text, suffix))
        {
          saved_suffix = *(text + strlen (text) - strlen (suffix));
          *(text + strlen (text) - strlen (suffix)) = '\0';
          devmsg ("trimming suffix %s\n", quote (suffix));
        }
      else
        devmsg ("no valid suffix found\n");
    }

  /* Skip blanks - always.  */
  char *p = skip_str_matching (text, newline_or_blank, true);

  /* setup auto-padding.  */
  if (auto_padding)
    {
      padding_width = text < p || 1 < field
                      ? mbswidth (text,
                                  MBSW_REJECT_INVALID | MBSW_REJECT_UNPRINTABLE)
                      : 0;
      if (padding_width < 0)
        padding_width = strlen (text);
      devmsg ("setting Auto-Padding to %jd characters\n", padding_width);
    }

  long double val = 0;
  enum simple_strtod_error e = parse_human_number (p, &val, precision);
  if (e == SSE_OK_PRECISION_LOSS && debug)
    error (0, 0, _("large input value %s: possible precision loss"),
           quote (p));

  if (from_unit_size != 1 || to_unit_size != 1)
    val = (val * from_unit_size) / to_unit_size;

  *result = val;

  if (e == SSE_OK || e == SSE_OK_PRECISION_LOSS)
    return true;
  else
    {
      if (saved_suffix)
        *(text + strlen (text)) = saved_suffix;
      return false;
    }
}

/* Search for multi-byte character C in multi-byte string S.
   Return a pointer to the character, or NULL if not found.  */